Jameson’s boyfriend and former UFC champ Tito Ortiz is the father of the twins.

The world-famous adult film actress went public with the news of her pregnancy in September, eight months after she announced her retirement from performing at the 2008 AVN Awards in Las Vegas.

“I can’t even express the extreme serenity that came over me once I saw my children inside me,” she wrote on her My Space blog. “It has been my dream to have children for an extremely long time, and I truly feel like finally, the time is right and God has blessed me. I have never felt more like a woman, or more alive.

“Tito is happier than I have ever seen him, it is so fulfilling to see him so proud. He looked me in the eye today after our doctors appointmet and said, ‘I’m the luckiest man on earth…thank you for having my babies.’ I cried.”